Inhalator for administering powder composition
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United States of America Patent
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-
Jul 22, 2003
Grant Date -
May 30, 2002
app pub date -
Jul 20, 2001
filing date -
Nov 27, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An inhalator including an inhalator body including a powder receiving chamber for receiving a powder, an air-powder mixture reservoir for temporarily storing an air-powder mixture flowing from the powder receiving chamber, and a diluent air passage for introducing a diluent air into the air-powder mixture reservoir. The air-powder mixture is formed within the powder receiving chamber when an air is introduced into the powder receiving chamber. The air-powder mixture within the air-powder mixture reservoir is admixed with a diluent air introduced thereinto through the diluent air passage. The diluted air-powder mixture is discharged from an air-powder mixture outlet into a user's oral or nasal cavity. A powder composition for inhalators includes at least two kinds of fine particles different in particle diameter.
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